the solubility of salt in water at 25°c is 155. When 80gram of its saturated solution at 25°c was cooled to 15°c,40gram of salt was precipitate .Find the solubility of salt at 15°c.
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Answer:180gExplanation:weight of salt = 90 gram, solubility = 50sing formula solubility of solute =weightofsolventinsaturatedsolutionweightofsoluteinsaturatedsolution×100or 50=weightofsolventinsaturatedsolutio90gm×100so weight of solven3t in saturated solution = 5090gm×100=180gmHence 180 gm of water is required to prepare a saturated solution.
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